Question: 7. (10%) Performance Consider a program with four classes of instructions A, B, C and D. Refer to following table for the data. Page 4

7. (10%) Performance Consider a program with four classes of instructions

7. (10%) Performance Consider a program with four classes of instructions A, B, C and D. Refer to following table for the data. Page 4 of 5 A B CPI % of instructions 1 40% 2 20% 4 30% D 3 10% 1) What is the overall CPI of executing a program? 2) Can we achieve a 2x overall speedup by only improving the CPI of class C instructions? If so, please calculate the new CPI of C class. Show all the steps

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